Vikings on Amazon Prime is taking a mid-season break and fans have been revisiting some of the earlier characters from the series. The series follows the Viking hero Ragnar Lothbrok (played by Travis Fimmel) and his son Bjorn (Alexander Ludwig), as well as Ragnar's brother Rollo (Clive Standen). Fans are exploring a theory which suggests Bjorn was actually the son of Rollo, as Rollo had tried to seduce Ragnar's wife, Lagertha (Katheryn Winnick).

Trending

In Vikings, Rollo is known to have an impulsive streak and he is also jealous of his younger brother, who is a legend in Kattegat.

At the start of the series Rollos tries on a number of occasions to pursue a relationship with Ragnar's wife, Lagertha, but she is loyal to her husband.

Rollo ends up turning against his brother and the two end up in a fight, as Rollo has had enough of being second best behind Ragnar.

During the series, he becomes the Duke of Normandy following an invasion on Paris, and he married the Frankish princess, Gisla (Morgane Polanski).

Fans are wondering whether Rollo is actually the father of Ragnar's son, Bjorn, and they have spotted a couple of hints in the series.

READ MORE

Messisfoot said on Reddit: "I can't help but notice that people may have missed hints from the very beginning that Bjorn might be Rollo's son.

"After Ragnar becomes Earl, he amasses great wealth after extorting King Aelle (Ivan Kaye) but Lagertha has a miscarriage. Despite the recent rise of the family, it seems the death of, supposedly, Ragnar's second son has created a rift between the couple that has Lagertha questioning whether their relationship will last.

"When they visit Upsalla, Ragnar plans to sacrifice Athelstan (George Blagden), someone who he is clearly growing attached to by the end of the episode, and specifically asks Odin to 'accept this sacrifice I plan to offer you and answer me; who will bear my son'.

"I think it is very telling that he doesn't say 'my next son', which is something you would expect him to say if he was confident that Bjorn was his son.

"Instead, it would make more sense for him to say this, as well as the death of what would be Lagertha and Ragnar's actual son driving a wedge between the two, if Bjorn's actual father was Rollo.

"It's fairly clear that by the end of his life, Ragnar has completely accepted Bjorn as his son and his primary heir. But these early episodes lead me to believe that at the beginning, he might have had his doubts."

Vikings: Ragnar was the father of Bjorn (Image: Sky)

Vikings: Bjorn is the son of Ragnar Lothbrok (Image: Sky)

In the series, Bjorn is certain Ragnar is his father and looks up to him as a powerful leader, and Bjorn wants to be just as successful as his father.

He is left feeling broken towards the end of series six as he feels he has let his dead father down, and he wonders whether he is the rightful king of Kattegat.

In the series, it is revealed his uncle Rollo might be his father, but he truly believes he is Ragnar's son and they undoubtedly share the same qualities.

According to Scandinavian histories from the 12th and 13th centuries, Bjorn Ironside was, in fact, the son of the Viking king, Ragnar. With this in mind, it seems the creators of the series added in the plot twist for dramatic effect.